.container {
    min-height: 100vh;
    background-color: #f5f5f5;
}

.header {
    background-color: #1677ff;
    color: white;
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.headerLeft {
    flex: 1;
}

.subject {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
}

.courseItem{
    font-size: 14px;
    margin-bottom: 10px;
    cursor: pointer;
}

.arrow {
    margin-left: 4px;
    font-size: 14px;
}

.todayTitle {
    font-size: 14px;
    margin-bottom: 8px;
    opacity: 0.9;
}

.progress {
    position: relative;
}

.time {
    font-size: 24px;
    font-weight: bold;
}

.totalTime {
    font-size: 14px;
    opacity: 0.9;
    margin-left: 2px;
}

.progressBar {
    height: 4px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    margin-top: 8px;
    overflow: hidden;
}

.progressInner {
    height: 100%;
    background-color: white;
    border-radius: 2px;
}

.headerRight {
    text-align: center;
    margin-left: 20px;
    margin-top: 50px;
}

.daysCount {
    font-size: 24px;
    font-weight: bold;
    line-height: 1;
    margin-bottom: 4px;
}

.daysText {
    font-size: 12px;
    line-height: 1.3;
    opacity: 0.9;
}

.content {
    padding: 16px;
}

.tools {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    padding: 16px;
    background-color: white;
    border-radius: 8px;
    margin-bottom: 16px;
}

.toolItem {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.toolIcon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toolIcon img {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.toolText {
    font-size: 12px;
    color: #333;
}

.banner {
    margin-bottom: 16px;
    border-radius: 8px;
    overflow: hidden;
}

.banner img {
    width: 100%;
    height: auto;
    display: block;
}

.tabs {
    /* display: flex; */
    gap: 24px;
    margin-bottom: 16px;
}

.tab {
    font-size: 14px;
    color: #666;
    padding-bottom: 8px;
    position: relative;
    cursor: pointer;
}

.tab.active {
    color: #333;
    font-weight: 500;
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background-color: #1677ff;
    border-radius: 1px;
}

.bannerImg {
    width: 100%;
    height: 150px;
}

.bannerImg img {
    width: 100%;
    height: 100%;
    /* object-fit: contain; */
}

.tabsContentItem {
    display: flex;
    align-items: center;
    /* justify-content: space-between; */
    background-color: #fff;
    border-radius: 10px;
    padding: 10px;
    margin-bottom: 10px;
}

.tabsContentItem img {
    width: 50px;
    height: 100px;
    border-radius: 10px;
    margin-right: 20px;
}
.title{
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 10px;
}

/* materials */